Simple easing on bootstrap scrollspy - javascript

This is pretty simple question I think for those who knows javascript/jquery good. I am pretty new to all this and couldn't make it. I found code that is calculating the offset of navbar that looks like this:
var offset = 50;
$('.navbar li a').click(function(event) {
event.preventDefault();
$($(this).attr('href'))[0].scrollIntoView();
scrollBy(0, -offset);
});
And here is the fiddle example of what I have so far. As you can see if you click link in navbar it just skips to section. Where in this script to add easing so it scroll down a bit smoother?
With original code I found first I had that smooth scroll but with new script is lost. This is the old code:
$(function() {
$('a.page-scroll').bind('click', function(event) {
var $anchor = $(this);
$('html, body').stop().animate({
scrollTop: $($anchor.attr('href')).offset().top
}, 1500, 'easeInOutExpo');
event.preventDefault();
});
});

Plavookac Hi there.
I have set up a working sample here in this Fiddle for you.
When you place this code in your page, place it below all of you other js script links. or if you put this in a script link, place the link at the end.
I take it that you would already have the jquery link .
Have a look at this code here, you will see the smooth scrolling and the offset.
$(document).ready(function(){
// Add scrollspy to <body>
$('body').scrollspy({target: "#navbar"});
// Add smooth scrolling on all links inside the navbar
$("#navbar a").on('click', function(event) {
// Prevent default anchor click behavior
event.preventDefault();
// Store hash
var hash = this.hash;
// Using jQuery's animate() method to add smooth page scroll
// The optional number (800) specifies the number of milliseconds it takes to scroll to the specified area
$('html, body').animate({
scrollTop: $(hash).offset().top - 60
}, 800, function(){
// Add hash (#) to URL when done scrolling (default click behavior)
window.location.hash = hash;
});
});
});
Notice this line of code... event.preventDefault(); this is used to prevent that flicker when first clicked to start the scrolling.
This part of the code will handle the smooth scroll.
// Using jQuery's animate() method to add smooth page scroll
// The optional number (800) specifies the number of milliseconds it takes to scroll to the specified area
$('html, body').animate({
scrollTop: $(hash).offset().top - 60
}, 800, function(){
// Add hash (#) to URL when done scrolling (default click behavior)
window.location.hash = hash;
});
Does this help?

Related

Override default scroll behaviour target on same page

I have a page with a navbar with links on the same page. When i disable all js plugins and click on a link it "jumps" (without smooth scroll) to the anchored link.
But because i have a sticky header it's neccessary that i use a offset. Because of that i copied this nice piece of code from the web:
My "navbar"
<div id=myAffix>My Affix</div>
Example link
The part of the html page:
<li id="2849" class="list-group-item list-group-item-info">
<h6>Example header</h6>
</li>
// Add smooth scrolling on all links inside the navbar
$("#myAffix a").on('click', function (event) {
var offset = 125;
// Make sure this.hash has a value before overriding default behavior
if (this.hash !== "") {
// Prevent default anchor click behavior
event.preventDefault();
// Store hash
var hash = this.hash;
// Using jQuery's animate() method to add smooth page scroll
// The optional number (800) specifies the number of milliseconds it takes to scroll to the specified area
$('html, body').animate({
scrollTop: $(hash).offset().top - offset
}, 800, function () {
// Add hash (#) to URL when done scrolling (default click behavior)
window.location.hash = hash;
});
} // End if
});
When i now click the link it smooth scrolls to that part (with the offset) and after that it "jumps" to the position without the offset. I tried to override default scroll behaviour, disable single js plugins but it keeps this behaviour. Does anyone have an idea?

Scroll top in animate function resting top position in IE

Scroll top in animate function resting top position in IE. See my script given below.
My Script
//Scroll Using Click
$(document).ready(function () {
// Add smooth scrolling to all links
$('.scrollTo').on('click', function (event) {
// Make sure this.hash has a value before overriding default behavior
if (this.hash !== "") {
// Prevent default anchor click behavior
event.preventDefault();
// Store hash
var hash = this.hash;
// Using jQuery's animate() method to add smooth page scroll
// The optional number (800) specifies the number of milliseconds it takes to scroll to the specified area
$('html, body').animate({
scrollTop: $(hash).offset().top - 100
}, 800, function () {
// Add hash (#) to URL when done scrolling (default click behavior)
window.location.hash = hash;
});
} // End if
});
});
IE browser scroll top position issue solved by removing function from animate function.

jQuery smooth scroll to element - not working properly

I was trying to make a "Click to Scroll" menu on my website (www.trianglesquad.com). I tried a code from
w3schools.com "https://www.w3schools.com/jquery/tryit.asp?filename=tryjquery_eff_animate_smoothscroll". I am facing a problem. It doesn't scroll to perfect point. For Example, If I click on "Portfolio", It scrolls to the mid of portfolio section. It scroll to perfect point after 3-4 Clicks.
Any Help will be highly appreciated :)
Thanks.
Not sure why all the down votes, as we all were beginners at some stage... Maybe for future posts, try creating a JS fiddle with an example and be more specific.
You can change the scrolling offset by adding or subtracting from the offset as per below example:
$(document).ready(function(){
// Add smooth scrolling to all links
$("a").on('click', function(event) {
// Make sure this.hash has a value before overriding default behavior
if (this.hash !== "") {
// Prevent default anchor click behavior
event.preventDefault();
// Store hash
var hash = this.hash;
// Using jQuery's animate() method to add smooth page scroll
// The optional number (800) specifies the number of milliseconds it takes to scroll to the specified area
$('html, body').animate({
scrollTop: $(hash).offset().top -200
}, 800, function(){
// Add hash (#) to URL when done scrolling (default click behavior)
window.location.hash = hash;
});
} // End if
});
});
The key take away here is this line:
scrollTop: $(hash).offset().top -200
You can add or subtract any amount of pixels that you choose.
Edit:
Actually try this code instead:
$(document).ready(function() {
$("#xp-navigation").find("a[href*=#]:not([href=#])").click(function () {
var offset = 0;
var speed = 1000;
var target = $(this.hash);
$("html,body").animate({
scrollTop: target.offset().top - offset
}, speed);
});
});
It is a bit cleaner and you can also adjust the offset.

jQuery - Slide to id .stop(); equivalent

I have this code for sliding down to each section on the page. The nav link has an id which links to the corresponding class. This works perfectly except if you click a nav button and then quicky click another it will continue to play out the animation. This isn't too bad.. but if you're mashing the buttons it really freaks out.
I tried using .stop(); but as expected, this stops the animation all together and jumps to the section. Ideally I wish it to go to stop animating wherever it is and continue to the selected section.
I have NO idea how to do this, so jQuery wizards please help!
JSFiddle
$('.nav-item').on('click',function(e){
var scrollSpeed = 1000;
var scrollTop = $(window).scrollTop();
var id = $(this).attr('id');
var goTo = $('div.'+ id).offset().top;
e.preventDefault();
$("html, body").animate({ scrollTop: goTo }, scrollSpeed);
});
just use stop as you have said before
$("html, body").stop().animate({ scrollTop: goTo },
http://jsfiddle.net/XRGkd/

How to use scrollTop in jquery when linking to a new page

I have the following code to smoothly scroll between links on a single page:
$(".navbar .nav a").bind('click',function(event){
$("html, body").animate({
scrollTop: $($(this).attr("href")).offset().top - (90) + "px"
}, {
duration: 1200,
easing: "easeInOutExpo"
});
return false;
event.preventDefault();
});
This works fine when the links are clicked on the same page. However, when they are linked to exernally:
The offset doesn't apply; and
The page doesn't scroll.
I would like to fix this by navigating to the new page, starting at the top and then scrolling down to the anchor. How can I achieve this?

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